20772026807 has 4 divisors (see below), whose sum is σ = 23739459216. Its totient is φ = 17804594400.

The previous prime is 20772026801. The next prime is 20772026837. The reversal of 20772026807 is 70862027702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70862027702 = 2 ⋅35431013851.

It is a cyclic number.

It is not a de Polignac number, because 20772026807 - 2¹⁴ = 20772010423 is a prime.

It is a super-3 number, since 3×20772026807³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20772026801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1483716194 + ... + 1483716207.

It is an arithmetic number, because the mean of its divisors is an integer number (5934864804).

Almost surely, 2^20772026807 is an apocalyptic number.

20772026807 is a deficient number, since it is larger than the sum of its proper divisors (2967432409).

20772026807 is an equidigital number, since it uses as much as digits as its factorization.

20772026807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967432408.

The product of its (nonzero) digits is 131712, while the sum is 41.

The spelling of 20772026807 in words is "twenty billion, seven hundred seventy-two million, twenty-six thousand, eight hundred seven".